Question juridique clé
Whether the day-fine amount of CHF 5 was set in accordance with Art. 34 para. 2 CP
Solution extraite
The amount was unlawful; the cantonal court could not determine the respondent's net income precisely and a day-fine of CHF 5 was symbolically low.
Motifs extraits
Net income must be assessed concretely, including social benefits but deducting only truly available income; the placement-cost issue was insufficiently clarified. For destitute offenders, the day-fine must still be perceptible and not merely symbolic; CHF 10 is the lower limit indicated for such cases.